Generated: 11/02/2025 09:37.54
Cerro Tololo Inter-American Observatory
Community Science and Data Center
Gemini Observatory
Kitt Peak National Observatory
Vera C. Rubin Observatory
Proposal Statistics by Instrument
NOIRLab 2023A
 

The following tables list NOIRLab 2023A proposal request statistics for telescopes and instruments in the U.S. ground-based observing system coordinated by NSF NOIRLab. Only proposals submitted to the NOIRLab 2023A TAC are included here.

 
Cerro Tololo
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
Blanco CT-4m 29 36 133.20 53.30 0.40 4.59
COSMOS 4 4 11.00 7.00 0.64 2.75
DECam 25 32 122.20 46.30 0.38 3.82
 
CT-0.9m 1 1 18.00 0.00 0.00 18.00
Tek2K 1 1 18.00 0.00 0.00 18.00
 
CT-1.5m 20 20 54.29 0.00 0.00 2.71
CHIRON 20 20 54.29 0.00 0.00 2.71
 
SOAR 34 47 89.43 13.25 0.15 2.63
Goodman 24 30 62.11 10.25 0.17 2.07
SAM 1 1 2.00 0.00 0.00 2.00
SIFS 1 1 3.00 3.00 1.00 3.00
SOI 1 1 1.00 0.00 0.00 1.00
Spartan 4 4 8.26 0.00 0.00 2.07
TripleSpec4.1 8 10 13.06 0.00 0.00 1.31
 
 
Gemini
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
GEM-N 112 184 136.99 34.01 0.25 1.15
ALOPEKE 5 5 11.81 4.00 0.34 1.95
GMOSN 60 103 51.79 28.47 0.55 0.60
GNIRS 21 21 20.34 0.00 0.00 1.14
GRACES 4 4 6.57 0.00 0.00 1.64
MAROON-X 19 19 28.84 1.50 0.05 1.52
NIFS 8 9 11.24 0.00 0.00 1.25
NIRI 16 23 6.40 0.04 0.01 0.37
 
GEM-S 91 159 108.33 20.38 0.19 1.11
FLAMINGOS2 18 34 11.40 0.00 0.00 0.39
GMOSS 45 81 36.34 15.98 0.44 0.56
GSAOI 9 13 6.62 0.40 0.06 0.51
IGRINS 24 24 36.98 0.00 0.00 1.54
ZORRO 7 7 16.99 4.00 0.24 2.17
 
 
Kitt Peak
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
WIYN 33 40 70.37 6.01 0.09 2.13
NEID 30 35 63.37 4.51 0.07 1.81
NESSI 2 2 5.50 0.00 0.00 2.75
ODI 1 3 1.50 1.50 1.00 0.50
 
 
Las Campanas Observatory
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
Baade (Magellan I) 4 5 6.00 1.00 0.17 1.50
FIRE 3 3 3.50 0.50 0.14 1.17
IMACS 1 1 0.50 0.50 0.50 0.50
MagE 1 1 2.00 0.00 0.00 2.00
 
Clay (Magellan II) 2 2 3.00 2.00 0.67 1.50
MIKE 2 2 3.00 2.00 0.67 1.50
 
 
Las Cumbres Observatory
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
LCOGT-1m 19 23 82.39 0.00 0.00 4.34
NRES 7 8 31.95 0.00 0.00 3.99
Sinistro 12 15 50.44 0.00 0.00 3.36
 
LCOGT-2M 6 12 12.47 0.70 0.06 2.08
FLOYDS 2 2 2.67 0.00 0.00 1.34
MuSCAT3 2 5 2.60 0.70 0.27 0.52
Spectral 2 5 7.20 0.00 0.00 1.44
 
 
Mount Kent Observatory
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
MINERVA-A 7 7 143.90 100.00 0.69 20.56
MINERVA 7 7 143.90 100.00 0.69 20.56
 
 
MT. Wilson, CA
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
CHARA 15 25 43.30 0.00 0.00 2.75
Classic 1 1 2.50 0.00 0.00 2.50
MIRC/MYS 13 22 36.80 0.00 0.00 1.66
PAVO 2 2 4.00 0.00 0.00 2.00
 
 
National Astronomical Observatory of Japan
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
Subaru 2 2 1.71 0.00 0.00 0.86
HSC 1 1 0.71 0.00 0.00 0.71
SCEXAO+CHARIS 1 1 1.00 0.00 0.00 1.00
 
 
W.M. Keck Observatory
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
Keck-I 8 11 8.00 2.00 0.25 1.00
HIRESr 2 5 3.00 1.00 0.33 0.60
KPF 3 3 2.50 0.00 0.00 0.83
MOSFIRE 1 1 1.00 1.00 1.00 1.00
OSIRIS-LGS 1 1 1.00 0.00 0.00 1.00
OSIRIS-NGS 1 1 0.50 0.00 0.00 0.50
 
Keck-II 4 4 5.00 1.50 0.30 1.25
ESI 1 1 2.00 0.00 0.00 2.00
KCWI 1 1 1.50 1.50 1.00 1.50
NIRC2-NGS 1 1 0.50 0.00 0.00 0.50
NIRSPEC 1 1 1.00 0.00 0.00 1.00